<template>
  <div class="login_container">
    <!-- 登录组件 -->
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/touxiang.webp" alt="" />
      </div>
      <!-- 表单区域 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="70px" class="login_form">
        <!-- 账号 -->
        <el-form-item prop="username" label="账号:">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user-solid"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item label="密码:" prop="password">
          <el-input v-model="loginForm.password" prefix-icon="el-icon-key" type="password"></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
      <el-button type="primary" @click="login">登录</el-button>
      <el-button type="info">注册</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  data(){
    return{
  // 登录表单数据绑定对象 
    loginForm:{
    username:"",
    password:""
    },
  // 表单验证对象
    loginFormRules:{
    // 验证用户名是否合法 
    username:[
        { required: true, message: '请输入用户名', trigger: 'blur' },
         { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
    ],
    // 验证密码是否合法
    password:[
              { required: true, message: '请输入密码', trigger: 'blur' },
         { min: 6, max: 18, message: '长度在 6 到 18 个字符', trigger: 'blur' }
    ]
    }  
    }
  },
  methods:{
    login(){
    this.$refs.loginFormRef.validate(async valid =>{
      if(!valid) return
    const {data:res} = await this.$axios.post('login',this.loginForm);
  if(res.meta.status !==200) return this.$message.error('登录失败')
   this.$message.success('登录成功')
   window.sessionStorage.setItem('token',res.data.token);
   this.$router.push('/home')
    })  
    }
  }
};
</script>
<style lang="less" scoped>
.login_container {
  background-color: rgb(159, 159, 197);
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
  }
}
.btns{
  display: flex;
  justify-content: flex-end;
}
.login_form{
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>